| Revison Crossword on Air and Oxygen |
Link |
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| Lovely cartoon introduction to oxygen |
Link |
Youtube. 2 minutes |
5 Star |
| Another nice overview |
Link |
Youtube. 5 minutes |
4 Star |
| An overview from periodic videos |
Link |
Youtube. 6 minutes |
4 Star |
| To show that approx one fifth of air is oxygen |
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Youtube. 2 minutes |
3 Star |
| Irish-made video - 10 mins |
Link |
It's invisible and we can often take it for granted but our atmosphere contains several important gases that play a role in our relationship with planet Earth. Learn more about the gases in air and the reactions they are involved in. |
3 Star |
| Surfing on the atmosphere |
Link |
Cool video. Youtube. |
5 Star |